looks like they don't have the underhood/on board hot water shower kit in stock. nuts.

you know you can build your own pretty cheap. a 10 or 15 gal tank with a 12v pump and one of the ultra low flow shower heads and mis plumbing supplies is all you need. pant the tank black and as long as its in the sun it will get hot enough for a shower. another option is one of the solar showers from a camping store.

Go on Ebay and piece together what you need. We did this on my friends TJ this summer for a camp shower. Get a Liquid to liquid heat exchanger, a 12 volt marine wash down pump or similar, a cheap hand held shower shower head from the local bix box, and a 15-20ft of heater hose. Put it all together and viola, hot water shower.

Make sure you get a large heat exchanger, the larger the better, plumb it on the outlet side of the heater core so that you can adjust the temperature of the water with the heater motor in the jeep.

Yea these are cool and I have been thing about making one of these for my winter project. There are a lot of web sites that show how to make them using a piece of 3" copper with 3/8" copper tubing coiling inside making the heat exchanger. Otherwise I just need a few fittings to get it to work

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I can quite drinking anytime I want, but hey I'm no quitter :)

I seem to recall a thread floating around on a board several years ago, thinking it was Pirate, about making a DIY OBS set up. there was tons of discussion on different heat exchange methods and such and as i recall some really creative ideas. Unfortunately I don't see it in my bookmarks at the moment, but google might help bring it up.